Product Description

The Keen Total Hardness Test Kit RMR-2003 is a chemical titration kit used to determine total hardness in water. It reports hardness as calcium carbonate, written as CaCO₃, which provides a common basis for comparing different water samples.

The kit uses EDTA complexometric titration with a visual drop-counting method. During testing, the sample changes from wine red to blue at the endpoint. The number of EDTA reagent drops is then converted into a hardness result in ppm or mg/L.

Two practical testing resolutions are available. A 10 ml sample provides a 5 ppm-per-drop result, while a 50 ml sample provides a 1 ppm-per-drop result. The supplied reagents and beakers support approximately 100 routine tests.

Key Features

• Brand: Keen
• Model and catalogue number: RMR-2003
• Measures aqueous total hardness as CaCO₃
• Uses EDTA complexometric titration
• Manual drop-counting calculation
• Visual wine-red-to-blue endpoint
• High-range resolution: 5 ppm per drop using a 10 ml sample
• Low-range resolution: 1 ppm per drop using a 50 ml sample
• Manufacturer-stated tolerance: ±5%
• Approximately 100 tests per kit
• Pre-prepared reagents for routine use
• Reagent containers carry lot and expiry information for traceability
• Includes sample beakers, reagents and an instruction manual
• Compact kit for laboratory and on-site water checks
• Country of origin: Bangladesh

Product Overview

Water hardness is mainly associated with dissolved calcium and magnesium ions. Other dissolved metals can also contribute to the overall reading. Hardness monitoring helps users understand water behavior in washing, heating, processing, and distribution systems.

High hardness can encourage scale formation in pipes, boilers, heaters, and filters. Monitoring the level supports treatment decisions, process control, and routine maintenance. The RMR-2003 provides a manual option where a digital photometer or full laboratory setup is not required.

Specification	Details
Product name	Total Hardness of Water Test Kit
Brand	Keen
Model / CAT No.	RMR-2003
SKU	RMR-20030100
Measured parameter	Total hardness as CaCO₃
Method	EDTA titration, drop-count
Endpoint	Wine red to blue
Resolution	1 ppm/drop or 5 ppm/drop
Tolerance	±5%
Test capacity	Approximately 100 tests
Included components	Buffer solution, indicator solution, two EDTA reagent bottles, 30 ml and 100 ml beakers, instruction manual
Approximate weight	200 g
Country of origin	Bangladesh

Main Applications

• Textile processing and dyeing water checks
• Boiler feed water and boiler-system monitoring
• Industrial process-water testing
• Drinking-water hardness assessment
• Battery-water and utility-water monitoring
• Swimming-pool water management
• Cooling-water and heat-exchange systems
• Water-treatment plants and softener checks
• Groundwater, well water and surface-water screening
• Laboratory demonstrations, education and routine field testing

Key Benefits of Keen Total Hardness Test Kit

Simple Drop-Count Calculation

The result is calculated by counting the EDTA reagent drops. For the standard high- and low-range procedures, the drop count is multiplied by five or one.

Two Practical Resolutions

Users can select a 10 ml sample for faster 5 ppm-per-drop testing or a 50 ml sample for finer 1 ppm-per-drop testing.

Complete Testing Setup

The kit includes the principal reagents, calibrated beakers, and instructions needed for routine total-hardness testing.

Portable Manual Method

No battery-powered instrument is needed. This makes the kit useful for laboratories, production areas and field locations.

Traceable Reagents

The manufacturer states that reagent containers are marked with lot numbers and expiry information, helping users manage stock and quality records.

Who Should Buy This Product?

• Textile mills, dyeing units and garment-processing laboratories
• Boiler operators and industrial maintenance teams
• Water-treatment and softener-service companies
• Food, beverage and manufacturing quality-control teams
• Drinking-water testing laboratories
• Swimming-pool maintenance professionals
• Universities, colleges and research laboratories
• Environmental and field-testing personnel
• Government, NGO and institutional procurement departments

Usage and Handling Summary of Keen Total Hardness Test Kit

Follow the current instruction manual supplied with the kit. The standard procedure is summarized below:

• Rinse the selected beaker several times with the sample water.
• Measure either 10 ml for the high-range procedure or 50 ml for the low-range procedure.
• For every 10 ml of sample, add three drops of Buffer Reagent RMR-2003A.
• For every 10 ml of sample, add three drops of Indicator Reagent RMR-2003B and mix thoroughly.
• Add EDTA Reagent RMR-2003C one drop at a time while continuously stirring.
• Count each EDTA drop until the sample changes from wine red to blue.
• For a 10 ml sample, multiply the EDTA drop count by 5 to obtain total hardness as CaCO₃ in ppm.
• For a 50 ml sample, multiply the EDTA drop count by 1 to obtain total hardness as CaCO₃ in ppm.
• Record the result and rinse the beaker thoroughly after completing the test.

Handling Precautions

• Keep the kit out of the reach of children.
• Close every reagent bottle immediately after use.
• Keep reagents away from heat, strong light and direct flame.
• Avoid contact with skin and eyes, and rinse with plenty of water following accidental contact.
• Use the kit under laboratory or technically competent supervision.
• Dispose of used samples and chemical reagents according to applicable laboratory and local requirements.

Limitations and Important Considerations

• The kit measures total hardness as CaCO₃. It does not provide separate calcium and magnesium concentrations.
• The endpoint is determined visually. Strongly colored, cloudy, or turbid samples may make the wine-red-to-blue change harder to identify.
• The result depends on accurate sample volume, correct drop size, continuous mixing, and careful endpoint observation.
• The manufacturer states a tolerance of ±5%, so the kit is intended for routine monitoring rather than ultra-trace instrumental analysis.
• The approximate number of tests can vary with the selected sample volume and the hardness of the water because harder samples may consume more titrant.
• Formal regulatory, legal or certification testing may require confirmation by an accredited laboratory.
• A verified shelf-life period was not located in the available product information. Contact Inaya Scientific for confirmation.

Available Pack Sizes or Variations

This product page covers the Keen RMR-2003 Total Hardness of Water Test Kit supplied as an approximately 100-test pack. The retail packaging may display “100+ Tests,” while the manufacturer describes the capacity as approximately 100 tests.

Availability of refill reagents, replacement beakers, or alternative pack sizes has not been confirmed. Contact Inaya Scientific for confirmation.

Keen Total Hardness Test Kit Price in Bangladesh

The current Keen Total Hardness Test Kit price in Bangladesh depends on stock availability, batch, order quantity, and delivery location. The current selling price from Inaya Scientific has not been provided.

Contact Inaya Scientific for confirmation of the latest price, current stock, expiry information, and quotation for bulk or institutional orders.

Availability and Delivery in Bangladesh

The Keen RMR-2003 Total Hardness of Water Test Kit can be ordered from Inaya Scientific, subject to current stock confirmation.

Nationwide delivery is available across Bangladesh, including Dhaka, Chattogram, Rajshahi, Khulna, Sylhet, Barishal, Rangpur, Mymensingh, and other districts. Delivery charges and estimated delivery time depend on the destination, courier service, and order quantity.

Why Buy Keen Total Hardness Test Kit From Inaya Scientific?

• Direct stock and price confirmation before ordering
• Nationwide delivery across Bangladesh
• Support for individual, commercial and institutional orders
• Bulk-quantity and procurement quotations on request
• Batch and expiry-date confirmation when available
• Product-selection assistance for scientific and water-testing requirements
• Communication through mobile, WhatsApp and email

Any required certificate, technical document, invoice condition, or procurement specification should be confirmed with Inaya Scientific before placing the order.

Frequently Asked Questions

What does the Keen RMR-2003 Total Hardness Test Kit measure?

It measures total hardness in water and reports the result as CaCO₃ in ppm or mg/L. The reading mainly reflects dissolved calcium and magnesium, although other metal ions may also contribute to total hardness.

What testing method does the Keen Total Hardness Test Kit use?

It uses EDTA complexometric titration with a manual drop-counting procedure. The endpoint is reached when the sample colour changes from wine red to blue.

How do I use the RMR-2003 hardness test kit?

Use a measured water sample, add the buffer and indicator reagents, and then add the EDTA reagent drop by drop while stirring. Count the EDTA drops until the colour changes to blue, then apply the correct multiplier for the selected sample volume.

What is the difference between the 10 ml and 50 ml test procedures?

The 10 ml procedure gives a resolution of 5 ppm per EDTA drop, while the 50 ml procedure gives a finer resolution of 1 ppm per drop. The 10 ml method is quicker, and the 50 ml method is more suitable when a more detailed reading is needed.

Where can this total hardness test kit be used?

It can be used for textile and dyeing water, boiler water, industrial process water, drinking water, swimming pools and water-treatment checks. It is also suitable for laboratories, educational institutions and routine field testing.

Does the kit measure calcium and magnesium separately?

No, it measures combined total hardness and reports the value as CaCO₃. A separate analytical method or instrument is required when individual calcium and magnesium concentrations are needed.

How many tests are available in one Keen RMR-2003 kit?

The manufacturer describes the kit as providing approximately 100 tests, while the retail box may state 100+ tests. The actual number can vary because titrant use depends on sample volume and water hardness.

What is included in the Keen Total Hardness Test Kit?

The kit includes buffer solution, indicator solution, two EDTA reagent bottles, 30 ml and 100 ml beakers, and an instruction manual. Contact Inaya Scientific to confirm the exact contents of the current supplied batch before ordering.

How should the kit be stored, and what is its shelf life?

Store the reagents tightly closed and away from heat, strong light and direct flame. A verified shelf-life period was not found in the available product information, so contact Inaya Scientific for confirmation of the expiry date and recommended storage conditions.

Where can I buy the Keen Total Hardness Test Kit in Bangladesh?

You can order the RMR-2003 kit from Inaya Scientific, subject to stock confirmation. Bulk and institutional quotations are available on request, and delivery is offered nationwide across Bangladesh.

Closing Recommendation

The Keen Total Hardness Test Kit RMR-2003 is suitable for routine water-hardness monitoring where a portable, manual titration method is preferred. Its drop-count calculation, two selectable resolutions, and complete reagent setup make it practical for textile, boiler, industrial, drinking-water, and laboratory applications.

For consistent results, measure the sample carefully, keep the reagent bottles vertical while dispensing drops, stir continuously, and observe the endpoint under clear lighting.

Order From Inaya Scientific

Contact Inaya Scientific to order the Keen RMR-2003 Total Hardness of Water Test Kit and confirm the latest price, available stock, expiry details, delivery charge, and bulk-order quotation.

Seller	Inaya Scientific
Product	Keen Total Hardness of Water Test Kit
Model	RMR-2003
Pack Size	Approximately 100 Tests
Mobile	+880 1778-492798
WhatsApp	01620247815
Email	inayascientific@gmail.com
Website	www.inayascientific.com
Delivery	Nationwide delivery across Bangladesh

When placing an order, provide the product name, model number, required quantity, delivery address and contact number.